FIELD: mechanical engineering.
SUBSTANCE: mechanical engineering for gas turbine technologies. Noise suppression device contains an exhaust unit housing, at the inlet of which a diffuser is installed, and at its outlet it contains a confuser. The noise suppression plates are installed in the exhaust block housing perpendicular to the axis of the gas turbine engine. The relative free cross-sectional area of the device is selected in the following ratio: Ffrrel = (Ffr / Fin) x 100% = (90÷130) %,
where: Ffrrel is the relative free cross-sectional area of the device, Ffr is the free cross-sectional area of the device, Fin is the area of the diffuser inlet section. The exhaust body, confuser and diffuser can be made of double walls and thermal insulation is laid between the walls.
EFFECT: when implementing the invention, minimal aerodynamic losses in the device are ensured.
2 cl, 4 dwg
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